I just upgraded my workstation from Windows NT to Windows 2000. Tiberian Sun worked fine before but now when the game starts I hear the sound but the video is stark white. After the intro video plays it goes to the game screen and I can hear the buttons beep as I mouse over them but if I click on anything but Exit the machine locks up. I tried re-installing Tiberian Sun and I took it up to the most recent patch leve. I don't really want to blow away my system install and try that. I know the CD's fine because I have it installed on another machine OK. My system is a Dell Optiplex GX1p PII 450 with 128MB of RAM.